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i <br /> I <br /> Wright Environmental Services, Inc., Tracy, CA Exploratory Boring Log <br /> 0P olect No 4090 BoringlWell No PB-16 Well Installed No <br /> nt Cox and Cox Date Drilled Apr 19, 2001 Total Depth 25' <br /> L cation 595 E 11th, Tracy, CA Logger CMP Cement Grout Seal 25' to surface <br /> Drilling Method 3' OD GeoProbe seal set by tremie line filled from <br /> Permit. PHS EHD 0025693 botom to top of borehole <br /> Water Levels 1st Enc 11' 11 05 Static NM <br /> Borehole <br /> Sample Cont E Depth Lithology Log Completion <br /> No PID Push co (ft) <br /> Gravel Road Base <br /> Pe,ss CL - Sandy Silty CLAY, brown, low plasticity, f sand 25%, �•,- <br /> a 0 crudely bedded, silt/clay 35%, stiff, damp ^�^. <br /> h+ i <br /> A• <br /> 5 <br /> �a-1s 755 <br /> 2 CL - Sandy CLAY, brown with gray stain, low plasticity, f crs <br /> sand 45%, rare fine gravel, massive, stiff, damp <br /> 0816 10 CL-SC - Silty CLAY to Clayey SAND, stained gray, low <br /> 512 . ., <br /> 3 plasticity, sand 30%-6-%, sand occurs as thin interbeds, stiff/ �.�. <br /> med dense, sand interbeds satruated at 11 feet <br /> 's 110 <br /> 15 SP - SAND, brown 10YR5/3, no stain, f sand 90%, clay/fines <br /> 10%, crs sand or fine gravel bed at 13 5', o/w massive, <br /> med dense, saturated, borehole flows <br /> 35 16 33 Same as above, local fine gravel beds, dense, saturated <br /> s � <br /> 20 <br /> Borehole flows, lost sample, returns show similar to above, <br /> Readvance borehole to 25 feet for water sample <br /> 25 <br /> Bottom of Boring = 25 feet <br /> Reconnaissance groundwater sample <br /> interval 25 to 21 feet <br /> �-H <br /> Reviewed by RGlCEG <br />